Sarvatobhadra and Kalachakra Chart Calculator
A free calculator for the classical chakra charts — the Sarvatobhadra Chakra that maps the nakshatras and planetary transits onto an eighty-one square grid, and the Kalachakra.
The Sarvatobhadra Chakra is a square grid that arranges the twenty-eight nakshatras, the twelve signs, the vowels and consonants and the weekday and tithi groups so that a transiting planet's vedha (obstruction) on your birth points can be read at a glance. Jagannatha Hora builds it directly from your chart.
Enter a birth date, time and place and the calculator draws the Sarvatobhadra Chakra and the Kalachakra for your horoscope, marking the natal points — janma nakshatra, name syllable, tithi and weekday — that a transit strikes. It presents the classical layout; it does not issue predictions.
How the Sarvatobhadra Chakra reads a transit
The chakra is a nine-by-nine grid of eighty-one squares. A planet transiting a nakshatra strikes (vedha) the squares along set lines from it, and whether the strike is favourable depends on the planet. These are the fixed rules the chart applies.
| # | Element of the chakra | Classical rule |
|---|---|---|
| 1 | The grid | 9 x 9 = 81 squares holding the 28 nakshatras, the 12 signs, the vowels and consonants, and the tithi and weekday groups. |
| 2 | Vedha (obstruction) | A planet in a nakshatra strikes the contents of three lines from it — one straight and two crossward. |
| 3 | Benefic vedha | A strike by the Moon, Mercury, Jupiter or Venus on a natal point is read as favourable. |
| 4 | Malefic vedha | A strike by the Sun, Mars, Saturn, Rahu or Ketu is read as unfavourable for that point. |
| 5 | Natal points watched | The janma nakshatra, the sign of the Lagna, the first syllable of the name, the janma tithi and the janma weekday. |
The Kalachakra shown alongside is a separate nakshatra-based device. Both are classical maps for reading transits against the birth chart, not forecasts of events.
The Sarvatobhadra Chakra
The full eighty-one square grid built from your chart, with the natal points a transit can strike marked.
The Kalachakra
The classical Kalachakra drawn for your horoscope alongside the Sarvatobhadra grid.
Transit vedha at a glance
See which transiting planets strike your janma nakshatra, name syllable, tithi and weekday, and whether the strike is benefic or malefic.
Common questions
What is the Sarvatobhadra Chakra?
It is a classical eighty-one square grid that arranges the nakshatras, signs, syllables, tithis and weekdays so that a transiting planet's vedha on your birth points can be read directly.
What is vedha in the Sarvatobhadra Chakra?
Vedha is the obstruction a transiting planet casts along set lines from its nakshatra. A benefic vedha (Moon, Mercury, Jupiter, Venus) is read as favourable and a malefic vedha (Sun, Mars, Saturn, Rahu, Ketu) as unfavourable for the struck point.
What is the Kalachakra?
The Kalachakra is a separate nakshatra-based chart used in Vedic astrology. This tool draws it for your horoscope alongside the Sarvatobhadra Chakra.
Do I need my birth time for the chakra charts?
Yes — an accurate birth date, time and place fix your Lagna, Moon and the natal points the chakras are built around. The calculator generates both charts from that data.